For the archives...
I used Unix in college in the late 1980s, as well as VMS (remember that beast?), but was pretty much on DOS otherwise at school, work, and home.
In the early 1990s, I read about a "free Unix for PCs" named Linux on various BBS posts. Interesting, but I didn't pursue it, because I didn't think it was going to go anywhere, as I wasn't finding much in the industry magazines. Of course, that would soon change.
Summer 1999, my first Linux install was Debian 2.1, which I have just now realized was about this time 20 years ago.
I had some sort of video issue that I couldn't get right, and the dial-up modem would not work at all. Overall, it kinda worked, but I wasn't going anywhere with it really.
Christmas Day 1999, my father presented me with a store-bought boxed version of Red Hat Linux 6.1, with books and disks galore. The next day (or two), I had a (mostly) functional Linux box. Achievement unlocked!
I bounced around other distros in the years after that. I arrived at Linux Mint with 2.2 in 2007, and it became my "go-to" Linux with LM 5 in 2008, but I must concede that I was still using Windows XP for many things, just because I couldn't get viable Linux alternatives working. That too would soon change.
In 2009, mainstream support for Win XP ended, and Vista was not getting good reviews, so fate took its course with me. I've been all Linux since, and I can't believe it's been 10 years already.
Today (2019), I'm mostly Linux Mint, but I certainly still dabble in other distros to satisfy my curiosities.
Joe